Mainstay Medical International plc : Block Listing Return

Regulatory News:

29 May 2015

Mainstay Medical International plc

("Mainstay” or the "Company”)

Block Listing Return

Name of the company:

Mainstay Medical International plc

Name of the scheme:

2014 Share Option Plan

Period of return:

From: 3 December 2014

To: 29 May 2015

Number and class of securities not issued under the scheme at the beginning of the period:

409,374 ordinary shares of €0.001 each

Number of securities issued under the scheme during the period:

None

Balance under the scheme of securities not yet issued at the end of the period:

409,374 ordinary shares of €0.001 each

Number and class of securities originally admitted and the date of admission:

409,374 ordinary shares of €0.001 each were admitted to ESM on 3 December 2014 as part of the block listing.

Total number of securities in issue at the end of the period:

- excluding balance of shares in Block Listing: 4,294,141 ordinary shares of €0.001 each, and 40,000 deferred shares of €1.00 each *

(* the deferred shares do not carry voting rights, are not entitled to receive any dividend or distribution and have in effect no right to a return of capital on a winding up)

View source version on businesswire.com: http://www.businesswire.com/news/home/20150528005817/en/